NPI to PI head tuning
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NPI to PI head tuning
Does anyone know if i do a NPI to PI head swap if i will need to get my truck tuned? 
I get both awnsers and i want to know whats up for sure. Im planning on getting an Xcal2 but i want to do the head swap before i turn my sheets into TP and i cant afford to do them all at once. So i was hoping i could run my truck for a couple of months with out tuning. Is this possible?
I get both awnsers and i want to know whats up for sure. Im planning on getting an Xcal2 but i want to do the head swap before i turn my sheets into TP and i cant afford to do them all at once. So i was hoping i could run my truck for a couple of months with out tuning. Is this possible?
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Joined: Feb 2007
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From: South Carolina
This is something you definately need to go over with Mike.
Wheather it will be alright for a short time i dunno....i would think if you get tunes for PI heads when you have Non PI heads it would run rich most likely until the swap??Better call Mike for this one
Wheather it will be alright for a short time i dunno....i would think if you get tunes for PI heads when you have Non PI heads it would run rich most likely until the swap??Better call Mike for this one
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Joined: Aug 2004
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From: North Huntingdon,Pa.
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Originally Posted by Kevin24
This is something you definately need to go over with Mike.
Wheather it will be alright for a short time i dunno....i would think if you get tunes for PI heads when you have Non PI heads it would run rich most likely until the swap??Better call Mike for this one
Wheather it will be alright for a short time i dunno....i would think if you get tunes for PI heads when you have Non PI heads it would run rich most likely until the swap??Better call Mike for this one
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Joined: Jul 2007
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From: Fort Wayne, Indiana
I did this swap in a mustang a few years back and I ran it without tuning, but wouldn't recommend it. The car ran kind of funny without, and with the tune you will see the most gains. Looking back, I should have tuned the car as I ran the risk of running the car lean and burning up the motor.